Remove archived packages

These should be of little use to anyone.

packages/homestead

-type = plugin
-repository = https://github.com/dwhoban/homestead
-maintainer = Dan Hoban <dan@hoban.digital>
-description = A plugin to access Laravel Homestead globally.

packages/node

-type = plugin
-repository = https://github.com/oh-my-fish/plugin-node
-description = Adds npm and ./node_modules/.bin to the path

packages/open_github

-type = plugin
-repository = https://github.com/patrickf3139/open_github
-maintainer = patrickf3139
-description = Jump to the GitHub PR page or tree view for the current branch

packages/redfish

-type = theme
-repository = https://github.com/redxtech/redfish
-description = A minimalistic theme with git information, status codes, and ssh information.

packages/shellder

-type = theme
-repository = https://github.com/simnalamburt/shellder
-description = :shell: Featured zsh/fish shell theme

packages/spacefish

-type = theme
-repository = https://github.com/matchai/spacefish
-maintainer = Matan Kushner <hello@matchai.me>
-description = 🚀🐟 A fish shell prompt for astronauts

packages/termux

-type = plugin
-repository = https://github.com/sagebind/plugin-termux
-description = Make Termux less broken

packages/yadd

-type = plugin
-repository = https://github.com/redxtech/yadd.git
-maintainer = Gabe Dunn <gabe.dunn@shaw.ca>
-description = A yarn/npm plugin for Oh My Fish.